# Free Tracekit developer tools

These static tools work without an account.

- [SLA / Error Budget Calculator](https://tracekit.dev/tools/sla-calculator.md): Calculate monthly and annual error budgets from SLA targets. Visualize burn rates and compare standard uptime tiers.
- [Sampling Rate Optimizer](https://tracekit.dev/tools/sampling-optimizer.md): Find optimal trace sampling rates by service criticality. Balance observability coverage against your cost targets.
- [Alert Threshold Recommender](https://tracekit.dev/tools/alert-recommender.md): Get data-driven alert thresholds based on your baseline metrics. Includes ready-to-paste configs for Prometheus, Grafana, and Datadog.
- [Span Size Estimator](https://tracekit.dev/tools/span-estimator.md): Estimate trace ingestion volume and monthly costs from span attributes and traffic patterns.
- [OTel Config Generator](https://tracekit.dev/tools/otel-config-generator.md): Generate a working OpenTelemetry configuration for your language and framework. Supports Go, Node.js, Python, PHP, Java, .NET, Ruby.
- [Trace Visualizer](https://tracekit.dev/tools/trace-visualizer.md): Paste trace JSON (OTLP, Jaeger, or Zipkin) and get an interactive waterfall visualization.
- [Latency Calculator](https://tracekit.dev/tools/latency-calculator.md): Input your services and SLO targets to get per-service latency budgets with the math explained.